Bend conductance of crossed wires in the presence of Andreev scattering
Abstract
We study the 4-probe bend conductance G14,32 of a mesoscopic crossed wire structure in the ballistic regime in the absence of a magnetic field, which for normal devices is usually negative. We predict that for sufficiently large devices and for small applied voltages G14,32 becomes positive in the presence of Andreev scattering, but at large voltages G14,32 remains negative.
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